- Rename types/build_status.rs to types/buildstatus.rs
- Rename StageInfo.sub_stage field to substage for consistency
- Move notification logic from finalize to dedicated notify module
- Remove notification module from finalize (moved to notify)
- Add notify module with event queuing, retry, and priority scheduling
- Add exponential backoff for temporary notification failures
- Implement plugin filtering by name list during registration
- Add fetch_plugins helper for batch plugin download
- Update finalize plugin registration to accept optional plugin filter
- Fix finalize config template indentation for notification policy
- Move all YAML templates to templates/ directory